US Bridges

Pleasant Valley RD over South Santiam River

Fair

Linn County, Oregon · 0.09 MI East HWY 20 · Structure no. 05150A090600009

Built
1983
42 years old
Condition
Fair
inspected August 2023
Type
Box Beam or Girders - Single or Spread
Prestressed Concrete Continuous
Length
396 ft
2 main spans
Daily traffic
4,429
2021 count
Owner
County
County Highway Agency

About this bridge

Pleasant Valley RD over South Santiam River is a prestressed concrete continuous box beam or girders - single or spread carrying Pleasant Valley RD over South Santiam River in Linn County, Oregon. It was built in 1983, so it is 42 years old, younger than the Oregon average of 49.9 years.

The most recent inspection reported to the Federal Highway Administration rates it in fair condition with a lowest component rating of 6 out of 9. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

It carries about 4,429 vehicles a day, roughly 15% of them trucks, projected to reach 7,426 by 2041. The structure is 396 ft (120.7 m) long and 39 ft wide. If it were closed, the detour would be 8.7 mi (14 km).

CarriesPleasant Valley RD
CrossesSouth Santiam River
Location0.09 MI East HWY 20
RouteCounty Highway A0483
StateOregon
Coordinates44.40121, -122.73997
Functional classRural Major Collector

Condition and inspection

Fair

The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound.

ComponentRatingMeaning
Deck7 GoodSome minor problems.
Superstructure6 SatisfactoryStructural elements show some minor deterioration.
Substructure6 SatisfactoryStructural elements show some minor deterioration.
Channel and channel protection6 SatisfactoryStructural elements show some minor deterioration.
Last inspectionAugust 2023
Inspection intervalevery 24 months
Operating statusOpen, no restriction
ScourFoundations stable; scour above top of footing
Structural evaluation6: Equal to present minimum criteria
Deck geometry5: Somewhat better than minimum adequacy to tolerate being left in place as is
Waterway adequacy8: Equal to present desirable criteria
Approach roadway alignment8: Equal to present desirable criteria
Operating rating64.6 US tons
Inventory rating50 US tons

Structure

MaterialPrestressed Concrete Continuous
DeckConcrete, cast-in-place
Main spans2
Design loadHS 20
Structure length396 ft (120.7 m)
Longest span220 ft (67.1 m)
Deck width39 ft (11.9 m)
Roadway width36 ft (11 m)
Vertical clearance over deckUnrestricted

Traffic and service

Average daily traffic4,429 (2021)
Projected traffic7,426 by 2041
Trucks15%
Lanes on structure2
Traffic directionTwo-way traffic
CarriesHighway
CrossesWaterway
Detour if closed8.7 mi (14 km)
TollOn a free road
National Highway SystemNo

Ownership and planned work

OwnerCounty Highway Agency
Maintained byCounty Highway Agency
Historic statusNot eligible for the National Register of Historic Places
Work proposedNone recorded
Estimated improvement cost—
NavigationNo navigation control on waterway

Frequently asked questions

When was Pleasant Valley RD over South Santiam River built?

It was built in 1983, making it 42 years old in 2025.

What condition is Pleasant Valley RD over South Santiam River in?

The National Bridge Inventory rates it in fair condition. The lowest-rated primary component is rated 5 or 6. Minor deterioration is present but the structure is sound. The last reported inspection was in August 2023.

How much traffic does Pleasant Valley RD over South Santiam River carry?

About 4,429 vehicles per day (2021 count), of which roughly 15% are trucks.

How long is Pleasant Valley RD over South Santiam River?

The structure is 396 ft (120.7 m) long with a longest span of 220 ft (67.1 m) and a deck 39 ft wide.

Who owns Pleasant Valley RD over South Santiam River?

It is owned by the County Highway Agency.